Metallic receptacle and closure therefor



p 1937- P. w. BENNINGTONI METALLIC RECEPTACLE AND CLOSURE THEREFOR Filed June 10, 1955 I N VENTOR PA UL W BENN/NQ TON ATTO RNEY Patented Sept. 14, 1937 PATENT OFFICE METALLIC RECEPTACLE AND CLOSURE THEREFOR Paul W. Bennington, Cleveland, Ohio, assignor to Wilson & Bennett Manufacturing Company, Chicago, 111., a. corporation of Illinois Application June 10,

Claims.

This invention relates to closure members for.

metallic receptacles or containers and more particularly to an improved type of clamping ring detachably mounted thereon which is simple in 5 construction, efficient in operation and inexpensive to manufacture. I

Heretofore many types of clamping rings have been provided for securing the closure member to the receptacle and most common in use are those of the split or free end types having numerous mechanisms for contracting the ring about the closure member and receptacle to thereby effect a suitable seal. In all of these types, however, the rings are expanded to permit removal from the closure member and receptacle by merely forcing the adjacent ends of the split portionaway from each other, thus merely enlarging the diameter of the ring. To contract the ring on the closure member and receptacle, the adjacent ends of the split portion are drawn together, but in drawing the ring to gether the latter does not "engage and exert an even pressure throughout the peripheral portions of the closure member and receptacle. This makes it diilicult to apply the ring. Furthermore, the mechanisms for closing the rings have been complicated.

It is therefore an object of the present invention to provide a receptacle with a closure member and a clamping ring removably cooperating with the closure member and receptacle and having an' operating mechanism so associated with the free ends of the ring that upon operation thereof one end is moved radially with respect to the other end, the body portion'of the ring approximating an involute.

Another object of the invention is to provide a clamping ring and operating mechanism therefor which has a minimum number of parts thereby assuring better operating conditions and a more positive operation.

With the objects above indicated and other objects hereinafter explained in view, my invention consists in the construction and combination of, elements hereinafter described and claimed.

Referring to the drawing,

Figure l is a top plan view of a receptacle with a clamping ring embodying the present invention shown in closed position;

Figure 2 is a top plan view similar to Figure 1 but showing the clamping ring in partly open position; I

Figure 3 is a fragmentary sectional view taken 1935, Serial No. 25,705

on line 3--3 in Figure 1 but on an enlarged scale;

Figure 4 is a fragmentary sectional view taken on line 4-4 in Figure 1;

Figure 5 is a fragmentary top view showing the clamping ring in full open position.

In the drawing I have shown the clamping ring embodying the present invention applied to a well-known type of commercial receptacle, but it should be understood that the invention may be adapted for use with various types of receptacles, barrels or the like.

A metal receptacle or barrel l0 has an open end around which a bead l I is formed in any wellknown manner, the top being illustrated in Fig-. ure 3. 'A cover member I2 is removably mounted in the open end of the barrel or receptacle l0 and has an outwardly extending marginal flange I 3 provided thereon which overlies the bead II when the cover is in position upon the receptacle. A packing I4, preferably in the form of a rubber tube, is disposed between the under side of the flange and the upper side of the bead and extends therearound to provide a suitable seal when the cover is secured to the receptacle.

A contractible clamping ring l5 of substantially U-shaped or channeled cross-section has separated adjacent ends l6 and II respectively and this ring is adapted to encircle the container, having portions engageable with the bead I I and flange I3 as shown in Figure 3 so that when the ring is contracted the bead and flange are forced toward each other to provide an effective seal.

A simple mechanism has been provided for contracting and expanding the ring in an elfficient manner and comprises a manually operated lever I8 of arcuate form so as to fit within the inner periphery of the ring for a purpose to be later described. One end of the lever I8 is pivotally connected at 19 to the end I! of the ring, more clearly shown in Figure 2, while the end N5 of the ring has a member 20 rigidly secured thereto. This member 20 extends inwardly at 2| and then outwardly in a circumferential direction beyond the end l6 of the ring and within the inner periphery thereof when the ring is in closed position. The lever I8 is also pivotally connected at 22 to the free end of the member 20 and acts as a'fixed pivot about which the lever operates to move the end I1 of the ring toward or away from the end l6 of. the ring, the ends being moved radially relatively.

In moving the lever I8 so as to separate the ends l6 and II, it will be noted, as shown in Figure 2, that if the end It remains or is held in closed position the body of the ring assumes approximately an involute or, in other words, that the radius of the ring progressively increases from the end Hi around to the end ll. In applying the ring to the barrel or container, it will be seen, therefore, that in moving the lever l8 to contract the ring the engagement thereof with the bead and flange will be progressive from the end IE to the end [1, thereby assuring a better clamping action than that secured by other types of rings now used.

The member 20 has a deformed portion 23 which is adapted to engage the inner adjacent portion of the cover as shown in Figure 3. This acts to prevent disengagement of the end l6 of the ring from the cover l2 as the ring is being applied and enables the ring to be more easily handled. It will also be noted that when the ring is applied, the projection 23 will act as a fulcrum or abutment when it engages with the upwardly extending cover flange so that the closing movement of the lever l8 tends to draw both of the ends l6 and I1 inwardly against the flange and bead and prevent them from springing outwardly as occurs in previous forms of rings. Other means may be employed for obtaining this result.

The lever l8 when moved to closed position, as shown in Figure 1, is adapted to fit beneath a flanged projection 24 secured to the ring so as to prevent accidental disengagement which would otherwise cause the ring to become expanded and thus possibly destroy the seal.

Another advantage in this ring is that due to the construction the ends I 6 and I! may be separated by movement of the lever to wide open position as shown in Figure 5, in which position the ends are maintained, thus affording more ready application of the ring to the container as it eliminates the necessity of holding the lever with one hand to maintain the ring in open position while applying it to the container as is necessary with those at present in use.

It will be apparent from the drawing just how this ring is applied and operated, and therefore any further description is believed unnecessary, but one important feature to be emphasized is the few number of parts required, namely the lever I8 and the ring l5. This results in an inexpensive construction, simple in operation, and one which will not easily become damaged.

While I have described the preferred embodiments of the invention, it is to be understood that I am not to be limited thereto inasmuch as changes or modifications may be resorted to without departing from the spirit of the invention as defined in the appended claims.

What is claimed is:

1. The combination with a metal container having an open end and provided with an outwardly projecting bead around its open end and a removable cover for the open end of the container and having a marginal flange adapted to overlie the bead, of a contractible clamping ring having portions engageable with the bead and flange for pressing the same together. when the ring is contracted and having separated adjacent ends, and means for contracting said ring including a single movable member with one end having pivotal connection with one end of the ring, said member also having a pivotal connection with the opposite end of the ring, said last named connection being spaced from the first named connection and also being located at a distance circumferentially from the last named end of the ring.

2. The combination with a metal container having an open end and provided with an outwardly projecting bead around its open end and a, removable cover for the open end of the container and having a marginal flange adapted to overlie the head, of a contractible clamping ring having portions engageable with the bead and flange for pressing the same together when the ring is contracted and having separated adjacent ends, and means for contracting said ring including a manually operated lever having one end pivotally connected to one end of said ring, and a rigid extension on the other end of said ring, the outer end of which is directly pivotally connected to said lever beyond said first pivoted connection when the parts are in closed position.

3. The combination with a metal container having an open end and provided with an outwardly projecting bead around its open end and a removable cover for the open end of the container and having a marginal flange adapted to overlie the bead, of a. contractible clamping ring having portions engageable with the bead and flange for pressing the same together when the ring is contracted and having separated adjacent ends, a member rigidly secured to one end of said ring and extending inwardly and in a circumferential direction beyond the end thereof, said u member having an offset portion engageable with the adjacent inner wall of said cover, and a manually operated lever pivotally connected inwardly of its end to the free end of said member, said lever being further pivotally connected at its end to the other end of said ring.

4. A contractible split channel shaped ring for fastening heads on containers, having a circumferential projection within the inner periphery of the ring and extending beyond the end, and a curved lever pivotally connected with the end of said projection and having pivotal connection with the other end of the ring, said projection extending a sufficient distance beyond the end of the ring from which it projects whereby the lever when moved to closing position, will draw the ends of the ring together to close the same and when moved to opening position will spread the ends apart for opening and will lie within the inner circumference of the ring when in closed position.

5. The combination with a closing ring of the character set forth, of a lug extending circumferentially beyond one end of the ring and having a projection for engagement with the inner portion of the cover, a lever having pivotal connection with the outer end of said lug and having its outer end pivotally connected with the other end of the ring, the arrangement being such that said projection will serve as a fulcrum to draw the ends of the ring inwardly when the lever is swung to closing position.

PAUL W. BENNINGTON. 

